Hi,

(This question might be answered previously. If so, I apologize.)

Can we *ALWAYS* use plain methods instead of blocks? Yes, sometimes
using a block may be obviously better than using a method but I mean,
are there any situations in which the *ONLY* solution is to use a block
rather than a method? May someone be forced to use only and only a
block? I ask this because I am not very intelligent and I am not sure
that I will thoroughly understand the "block" concept.